1. Orthopedic Surgery Barcelona University Childrens Hospital HM Nens Barcelona Spain
2. Unidad UCA Mikel Sanchez, Vithas San José Vitoria‐Gasteiz Spain
3. icatMA Hand and Microsurgery Unit ICATME, Hospital Universitari Quiron‐Dexeus Barcelona Spain
4. Pediatric Orthopedic Unit Saint Paul Hospital Hanoi Vietnam
5. Service d'orthopédie Pédiatrique Hôpital d'Enfants A. Harouchi, Université de Médecine Hassan 2 Casablanca Morocco